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I am having issues displaying closed caption on youtube videos using the iframe player.
Here's the code I am using:
<!DOCTYPE html>
<html>
<body>
<!-- 1. The <iframe> (and video player) will replace this <div> tag. -->
<div id="player"></div>
<script>
// 2. This code loads the IFrame Player API code asynchronously.
var tag = document.createElement('script');
tag.src = "https://www.youtube.com/iframe_api";
var firstScriptTag = document.getElementsByTagName('script')[0];
firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
// 3. This function creates an <iframe> (and YouTube player)
// after the API code downloads.
var player;
function onYouTubeIframeAPIReady() {
player = new YT.Player('player', {
height: '390',
width: '640',
videoId: 'M7lc1UVf-VE',
events: {
'onReady': onPlayerReady,
'onStateChange': onPlayerStateChange
}
});
}
// 4. The API will call this function when the video player is ready.
function onPlayerReady(event) {
event.target.playVideo();
}
// 5. The API calls this function when the player's state changes.
// The function indicates that when playing a video (state=1),
// the player should play for six seconds and then stop.
function onPlayerStateChange(event) {
event.target.loadModule('captions');
}
</script>
</body>
</html>
Here's a gist https://gist.github.com/khirakawa/0a81b3039a85b9875b59
This is basically the same sample code that's on the API reference page, https://developers.google.com/youtube/iframe_api_reference. I call event.target.loadModule('captions'); on a player state change event.
I could not find any documentation on their API reference page about loading caption modules, but I did find the code to load the caption module in this ticket https://code.google.com/p/gdata-issues/issues/detail?id=444
I tried this on both Safari and Chrome with no luck.
The local storage values I see when youtube is opened is:
yt-remote-connected-devices {"data":"[]","expiration":1412291704974,"creation":1412205304974}
yt-remote-device-id {"data":"27238aac-9452-4ae8-9b9f-1e29278e4d3b","expiration":1443741293991,"creation":1412205293992}
yt-remote-load-account-screens {"data":"false","expiration":1443741304972,"creation":1412205304972}
yt-remote-online-screens {"data":"[]","expiration":1412205364973,"creation":1412205304973}
Notice that its missing entries for captions (I can't recall what the key values were, but I know there were two of them. One to enable captions and the other for caption settings).
The demo page (https://developers.google.com/youtube/youtube_player_demo) shows closed captions if you check cc_load_policy, but that's only an AS3 option.
This was working on October 6th, but I cannot get it to work anymore. I'm not sure if the youtube script itself changed.
I tried moving event.target.loadModule('captions'); to the onPlayerReady handler, but that didn't work either.
Any help would be greatly appreciated.
I was able to load captions by setting
cc_load_policyto1. I also realized that the sample video on the youtube site defaulting to using<embed>(read: Flash), instead of using the html5 video player.I am not certain when the iframe player decides to use over , but I did find a video that does use the html5 video tag. Even so, I had to set
cc_load_policyto1in order for it to work. NeitherloadModulenorunloadModuleworks anymore.I hope this helps anyone else who ran into this issue.